Ankle fracture

Overview

An ankle fracture is a break in one or more bones around the ankle joint, most commonly the malleoli (the bony bumps on the inside and outside of the ankle) or the lower end of the tibia or fibula. The fracture can disrupt joint alignment and stability, which leads to pain, swelling, and difficulty moving or bearing weight. Healing requires time and often immobilization to keep the bones in the correct position. If the ankle joint is unstable, it may heal poorly without proper reduction and protection, so early assessment matters.

Symptoms

Pain is usually felt around the ankle, and it often worsens with walking, standing, or even gentle movement. Swelling and bruising are common, and the ankle may feel stiff or unstable. You may have difficulty bearing weight, especially during the first days after injury. In some cases, numbness or tingling can occur if swelling or injury affects nearby nerves.

Causes

Ankle fractures most often happen from a twisting injury with a fall, a direct blow to the ankle, or landing awkwardly from a jump. Common mechanisms include rolling the ankle inward or outward with force and impact from sports or accidents. Fractures can range from hairline cracks to displaced breaks, depending on how much the bones move from their normal alignment.

Risk Factors

Risk increases with falls, sports that involve jumping or cutting, and activities on uneven ground. Osteoporosis, low bone density, and certain medications that weaken bones can make fractures more likely after minor trauma. Smoking and uncontrolled diabetes may also slow healing and increase complications.

Prevention

To reduce risk, wear appropriate supportive footwear and consider ankle-strengthening and balance exercises if you have a history of ankle sprains. Strengthening the calf and improving ankle mobility and proprioception can improve stability during sports and uneven terrain. Maintain bone health through adequate calcium and vitamin D, regular weight-bearing activity, and evaluation of osteoporosis risk when appropriate.

How the Diagnosis Is Evaluated

Clinicians typically start with a detailed injury history, including how the ankle was twisted or struck and whether you could bear weight right after the injury. A physical exam focuses on tenderness over the malleoli, swelling, bruising, ankle range of motion, alignment, and circulation and sensation in the foot. X-rays are usually the main test to confirm the fracture and assess displacement, and additional imaging such as CT may be used if the fracture pattern or joint involvement is unclear or complex.

Nonsurgical Treatment Options

Stable, non-displaced ankle fractures are commonly treated with immobilization using a splint, walking boot, or cast to protect the fracture while it heals. If the fracture is displaced but can be safely aligned without an operation, clinicians may perform a closed reduction followed by immobilization. Pain is managed with rest, ice, elevation, and medication such as acetaminophen or anti-inflammatory drugs if appropriate for you. You may be advised to limit or avoid weight bearing for a period, using crutches or a walker to reduce stress on the healing bone. As healing progresses, physical therapy helps restore range of motion, strength, and balance.

When to Seek Medical Attention

Seek urgent care or emergency evaluation if you cannot bear weight, the ankle looks deformed, or pain and swelling are rapidly worsening after injury. Get prompt medical attention for numbness, tingling, worsening foot color or temperature, or any concern about circulation. Fever, severe increasing pain despite rest, or an open wound near the fracture site also require prompt evaluation. If you suspect a fracture and symptoms are significant or not improving within a day or two, you should still be assessed to prevent complications.

Frequently Asked Questions

Next Steps

If you suspect an ankle fracture or you have significant pain, swelling, or inability to bear weight, get evaluated soon-often with X-rays-to confirm the diagnosis and stability. Follow your clinician's guidance on immobilization and weight-bearing, and schedule follow-up to monitor healing and restore function safely.